The Supreme Court may well have handed former state Senate Majority Leader Joe Bruno — convicted on federal corruption charges and sentenced to two years behind bars — a potential “stay out of jail free” card.

Along with former Enron CEO Jeffrey Skilling, ex-Govs. Rod Blagojevich of Illinois and Don Siegelman of Alabama and one-time press lord Conrad Black.

In a rare unanimous ruling, the justices sharply limited the scope of the much-criticized federal “honest-services” statute under which Bruno was convicted last December to cases involving only outright bribery and kickbacks.

And they specifically rejected the law’s inclusion of cases involving conflicts of interest and “undisclosed self-dealing” as “unconstitutionally vague.”

Little wonder Bruno and his lawyers are encouraged — neither of the two counts on which he was found guilty involved bribes or kickbacks.

He was convicted of failing to disclose conflicts of interest in his outside business — accepting $200,000 in “consulting fees” from an Albany businessman whom Bruno had helped land state contracts.

Now Team Bruno will ask the trial judge — who stayed the sentence pending yesterday’s ruling — to vacate the conviction.

Or federal prosecutors may simply throw in the towel.

Though that might get him off the hook legally, there’s no erasing the record that came out at trial — which made clear that Bruno abused the office he held for 14 years.

Yet, in that, Bruno is hardly unique.

One problem with the law is that it left businessmen-politicians on the hook, but exempted people like Assembly Speaker Sheldon Silver and Senate Democratic leader John Sampson — both part-time “counsel” to top tort-law firms.

Even as they promote legislation that has a direct financial bearing on the trial-law bar.

That doesn’t sound like “honest services” by any stretch of the imagination.

Which is why we wish the court had followed the urging of Justices Antonin Scalia, Clarence Thomas and Anthony Kennedy and rejected the entire statute, rather than simply limiting it.

Yes, the court’s ruling is a real setback for prosecutors — one that could result in several corrupt officials walking free.

But criminal behavior should be defined in a way that is abundantly clear to prosecutors, defendants and juries alike. It’s now up to Congress and state legislatures to repair the damage.